Boiler compound



No Drawing.

Patented Apr. 24, 1928.

UNITED STATES WILLIAM H. KEELEY, OE AMARILIQO TEXAS, ASSIGNOR TO- KEELEY CHEMICAL COM PANY, OF AMARILLC, TEXAS,

PATENT OFFICE.

A CORPORATION OF NEVADA.

' 3011.23. COMPOUND.

This invention relates to and has for its object. the production of a compound for use in steam boilers to prevent the formation therein of lime scale and to cause the precipitation of the scale forming ingredients in the water to the bottom of tlie boiler and to efiect the removal of scale already in the boiler. Y

The compound consists of water glass, caustic soda, tannic acid, soda ash and water.

In preparing the compound, one gallon of water glass, one and one-half gallons of caustic soda, one gallon of tannicv acid, three gallons of soda ash, and ten gallons of Water are placed in a vat and heateotto the boiling pointand stirred. After the solid ingredients have been dissolved, thirty-three and one-half gallons of Water are added, and

. the ingredients are again heated to the boilpoint, after which the compound is ready for use.

The respective proportionsofthe ingredients of the compound are, water glass 2%,

caustic soda, 3%,tannic acid 2%, soda ash 6% and water 87%.

Application filed December 9,1926. Serial No. 153,732.

As the compoundisin liquid form, it may i be fed to the boiler through a feed pump or injector, or if desired, it can be egulaily fed into the feed water line by a lubricator. The compound mixes readily with'the water inlihe boiler, and functions to preserve the o1 er.

The compound having the ingredients inv proportions stated is especially adapted for use in Water found in and about Amarillo, Texas, and has produced highly satisfactory results. The proportions of-flhe ihgredients may be varied as required by the percentage of scale formingingredients in the water of other localities.

I claim Aboiler compound consisting of one gal- Inn of water glass, one and one-half gallons of caustic soda, one gallon of tannic acid, three gallons of soda ash, and a quantity of water suflicicnt to make a batch of fifty gallons. I

In testimony WILLIAM M. 'NEELEY.

whereof I aflix my signature. 

